Redwood City, CA · San Mateo County
CORDILLERS MUTUAL WATER COMPANY Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of June 27, 2011. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in San Mateo County, CA.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA4100606
- System type
- Community Water System
- Population served
- 59
- Service connections
- 18
- Ownership
- privately owned
- Water source
- not on record
CORDILLERS MUTUAL WATER COMPANY is one of 3,951 community water systems in California in the 500 or fewer people size category, formerly serving 59 people.
EPA's federal records list this system as inactive in 2011; the record below is historical.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
Cordillers Mutual Water Company
6503631591
Redwood City, CA 94062